AsMemory() [2/5]

static ReadOnlyMemory< char > System.MemoryExtensions.AsMemory ( this string? text, Index startIndex )

inlinestatic

Definition at line 438 of file MemoryExtensions.cs.

    {
        if (text == null)
        {
            if (!startIndex.Equals(Index.Start))
            {
                ThrowHelper.ThrowArgumentNullException(ExceptionArgument.text);
            }
            return default(ReadOnlyMemory<char>);
        }
        int offset = startIndex.GetOffset(text.Length);
        if ((uint)offset > (uint)text.Length)
        {
            ThrowHelper.ThrowArgumentOutOfRangeException();
        }
        return new ReadOnlyMemory<char>(text, offset, text.Length - offset);
    }

References System.offset, System.Index.Start, System.startIndex, System.text, System.ThrowHelper.ThrowArgumentNullException(), and System.ThrowHelper.ThrowArgumentOutOfRangeException().